François Boucher

TL;DR: The structural modifications of the dipalmitoylphosphatidylcholine (DPPC) organization induced by increasing concentration of the volatile anesthetic enflurane have been studied by differential scanning calorimetry, small-angle, and wide-angle x-ray scattering, and titration curves of en flurane effect in the mixed lipidic phase have been obtained by using the fluorescent lipid probe Laurdan.

TL;DR: The phospholipid-to-rhodopsin ratio appears as the best purity criterion because of its reliability, its higher sensitivity, and its ease of achievement.

TL;DR: It is shown that very concentrated dried rod outer segment membranes have a sufficient thermal diffusivity to be analyzed by photoacoustic spectroscopy, and the low temperature dissipation spectrum has been obtained.

TL;DR: Conditions can be found where the native structure of membrane proteins is maintained after their spreading in monolayers at the gas–water interface, and photosystem II core complex (PS II CC) is less sensitive to denaturation than rhodopsin.

TL;DR: By examining surface pressure and ellipsometric isotherms of intact and partially hydrolyzed rhodopsin, it is determined that a lateral pressure of 38 mN/m is necessary to give rhodopin its natural transmembrane orientation and that surface pressures exceeding 45 mN /m lead to the formation of multilayers in the disk membrane film.